[#1523] shard: Store generic storage ID in metabase

Allow to extend blobstor with more storage sub-systems. Currently
objects stored in the FSTree have empty byte slice descriptor and object
from blobovnicza tree have the same id as earlier. Each such change in
the identifier formation should be accompanied with metabase version
increase.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

pkg/local_object_storage/blobovnicza/id.go

@@ -11,3 +11,7 @@ func NewIDFromBytes(v []byte) *ID {
 func (id ID) String() string {
 	return string(id)
 }
+
+func (id ID) Bytes() []byte {
+	return id
+}

pkg/local_object_storage/blobstor/blobovniczatree/blobovnicza.go

@@ -204,7 +204,7 @@ func (b *Blobovniczas) Put(prm common.PutPrm) (common.PutRes, error) {
 		return common.PutRes{}, errPutFailed
 	}
 
-	return common.PutRes{BlobovniczaID: id}, nil
+	return common.PutRes{StorageID: id.Bytes()}, nil
 }
 
 // Get reads object from blobovnicza tree.
@@ -215,8 +215,9 @@ func (b *Blobovniczas) Get(prm common.GetPrm) (res common.GetRes, err error) {
 	var bPrm blobovnicza.GetPrm
 	bPrm.SetAddress(prm.Address)
 
-	if prm.BlobovniczaID != nil {
+	if prm.StorageID != nil {
-		blz, err := b.openBlobovnicza(prm.BlobovniczaID.String())
+		id := blobovnicza.NewIDFromBytes(prm.StorageID)
+		blz, err := b.openBlobovnicza(id.String())
 		if err != nil {
 			return res, err
 		}
@@ -265,8 +266,9 @@ func (b *Blobovniczas) Delete(prm common.DeletePrm) (res common.DeleteRes, err e
 	var bPrm blobovnicza.DeletePrm
 	bPrm.SetAddress(prm.Address)
 
-	if prm.BlobovniczaID != nil {
+	if prm.StorageID != nil {
-		blz, err := b.openBlobovnicza(prm.BlobovniczaID.String())
+		id := blobovnicza.NewIDFromBytes(prm.StorageID)
+		blz, err := b.openBlobovnicza(id.String())
 		if err != nil {
 			return res, err
 		}
@@ -318,8 +320,9 @@ func (b *Blobovniczas) Delete(prm common.DeletePrm) (res common.DeleteRes, err e
 // If blobocvnicza ID is specified, only this blobovnicza is processed.
 // Otherwise, all Blobovniczas are processed descending weight.
 func (b *Blobovniczas) GetRange(prm common.GetRangePrm) (res common.GetRangeRes, err error) {
-	if prm.BlobovniczaID != nil {
+	if prm.StorageID != nil {
-		blz, err := b.openBlobovnicza(prm.BlobovniczaID.String())
+		id := blobovnicza.NewIDFromBytes(prm.StorageID)
+		blz, err := b.openBlobovnicza(id.String())
 		if err != nil {
 			return common.GetRangeRes{}, err
 		}
@@ -573,7 +576,7 @@ func (b *Blobovniczas) deleteObject(blz *blobovnicza.Blobovnicza, prm blobovnicz
 	storagelog.Write(b.log,
 		storagelog.AddressField(dp.Address),
 		storagelog.OpField("Blobovniczas DELETE"),
-		zap.Stringer("blobovnicza ID", dp.BlobovniczaID),
+		zap.Stringer("blobovnicza ID", blobovnicza.NewIDFromBytes(dp.StorageID)),
 	)
 
 	return common.DeleteRes{}, nil

pkg/local_object_storage/blobstor/blobovniczatree/blobovnicza_test.go

@@ -78,7 +78,7 @@ func TestBlobovniczas(t *testing.T) {
 
 		// get w/ blobovnicza ID
 		var prm common.GetPrm
-		prm.BlobovniczaID = pRes.BlobovniczaID
+		prm.StorageID = pRes.StorageID
 		prm.Address = addr
 
 		res, err := b.Get(prm)
@@ -86,7 +86,7 @@ func TestBlobovniczas(t *testing.T) {
 		require.Equal(t, obj, res.Object)
 
 		// get w/o blobovnicza ID
-		prm.BlobovniczaID = nil
+		prm.StorageID = nil
 
 		res, err = b.Get(prm)
 		require.NoError(t, err)
@@ -94,7 +94,7 @@ func TestBlobovniczas(t *testing.T) {
 
 		// get range w/ blobovnicza ID
 		var rngPrm common.GetRangePrm
-		rngPrm.BlobovniczaID = pRes.BlobovniczaID
+		rngPrm.StorageID = pRes.StorageID
 		rngPrm.Address = addr
 
 		payload := obj.Payload()
@@ -109,7 +109,7 @@ func TestBlobovniczas(t *testing.T) {
 		require.Equal(t, payload[off:off+ln], rngRes.Data)
 
 		// get range w/o blobovnicza ID
-		rngPrm.BlobovniczaID = nil
+		rngPrm.StorageID = nil
 
 		rngRes, err = b.GetRange(rngPrm)
 		require.NoError(t, err)

pkg/local_object_storage/blobstor/common/delete.go

@@ -1,14 +1,13 @@
 package common
 
 import (
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
 	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
 )
 
 // DeletePrm groups the parameters of Delete operation.
 type DeletePrm struct {
-	Address       oid.Address
+	Address   oid.Address
-	BlobovniczaID *blobovnicza.ID
+	StorageID []byte
 }
 
 // DeleteRes groups the resulting values of Delete operation.

pkg/local_object_storage/blobstor/common/get.go

@@ -1,14 +1,13 @@
 package common
 
 import (
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
 	objectSDK "github.com/nspcc-dev/neofs-sdk-go/object"
 	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
 )
 
 type GetPrm struct {
-	Address       oid.Address
+	Address   oid.Address
-	BlobovniczaID *blobovnicza.ID
+	StorageID []byte
 }
 
 type GetRes struct {

pkg/local_object_storage/blobstor/common/get_range.go

@@ -1,15 +1,14 @@
 package common
 
 import (
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
 	objectSDK "github.com/nspcc-dev/neofs-sdk-go/object"
 	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
 )
 
 type GetRangePrm struct {
-	Address       oid.Address
+	Address   oid.Address
-	Range         objectSDK.Range
+	Range     objectSDK.Range
-	BlobovniczaID *blobovnicza.ID
+	StorageID []byte
 }
 
 type GetRangeRes struct {

pkg/local_object_storage/blobstor/common/put.go

@@ -1,7 +1,6 @@
 package common
 
 import (
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
 	objectSDK "github.com/nspcc-dev/neofs-sdk-go/object"
 	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
 )
@@ -15,5 +14,5 @@ type PutPrm struct {
 
 // PutRes groups the resulting values of Put operation.
 type PutRes struct {
-	BlobovniczaID *blobovnicza.ID
+	StorageID []byte
 }

pkg/local_object_storage/blobstor/delete.go

@@ -10,7 +10,7 @@ import (
 )
 
 func (b *BlobStor) Delete(prm common.DeletePrm) (common.DeleteRes, error) {
-	if prm.BlobovniczaID == nil {
+	if prm.StorageID == nil {
 		// Nothing specified, try everything.
 		res, err := b.deleteBig(prm)
 		if err == nil || !errors.As(err, new(apistatus.ObjectNotFound)) {
@@ -18,7 +18,7 @@ func (b *BlobStor) Delete(prm common.DeletePrm) (common.DeleteRes, error) {
 		}
 		return b.deleteSmall(prm)
 	}
-	if *prm.BlobovniczaID == nil {
+	if len(prm.StorageID) == 0 {
 		return b.deleteBig(prm)
 	}
 	return b.deleteSmall(prm)

pkg/local_object_storage/blobstor/get.go

@@ -14,7 +14,7 @@ import (
 // If the descriptor is present, only one sub-storage is tried,
 // Otherwise, each sub-storage is tried in order.
 func (b *BlobStor) Get(prm common.GetPrm) (common.GetRes, error) {
-	if prm.BlobovniczaID == nil {
+	if prm.StorageID == nil {
 		// Nothing specified, try everything.
 		res, err := b.getBig(prm)
 		if err == nil || !errors.As(err, new(apistatus.ObjectNotFound)) {
@@ -22,7 +22,7 @@ func (b *BlobStor) Get(prm common.GetPrm) (common.GetRes, error) {
 		}
 		return b.getSmall(prm)
 	}
-	if *prm.BlobovniczaID == nil {
+	if len(prm.StorageID) == 0 {
 		return b.getBig(prm)
 	}
 	return b.getSmall(prm)

pkg/local_object_storage/blobstor/get_range.go

@@ -14,7 +14,7 @@ import (
 // If the descriptor is present, only one sub-storage is tried,
 // Otherwise, each sub-storage is tried in order.
 func (b *BlobStor) GetRange(prm common.GetRangePrm) (common.GetRangeRes, error) {
-	if prm.BlobovniczaID == nil {
+	if prm.StorageID == nil {
 		// Nothing specified, try everything.
 		res, err := b.getRangeBig(prm)
 		if err == nil || !errors.As(err, new(apistatus.ObjectNotFound)) {
@@ -22,7 +22,7 @@ func (b *BlobStor) GetRange(prm common.GetRangePrm) (common.GetRangeRes, error)
 		}
 		return b.getRangeSmall(prm)
 	}
-	if *prm.BlobovniczaID == nil {
+	if len(prm.StorageID) == 0 {
 		return b.getRangeBig(prm)
 	}
 	return b.getRangeSmall(prm)

pkg/local_object_storage/blobstor/iterate.go

@@ -15,7 +15,7 @@ type IterationElement struct {
 
 	addr oid.Address
 
-	blzID *blobovnicza.ID
+	descriptor []byte
 }
 
 // ObjectData returns the stored object in a binary representation.
@@ -23,10 +23,9 @@ func (x IterationElement) ObjectData() []byte {
 	return x.data
 }
 
-// BlobovniczaID returns the identifier of Blobovnicza in which object is stored.
+// Descriptor returns the identifier of storage part where x is stored.
-// Returns nil if the object isn't in Blobovnicza.
+func (x IterationElement) Descriptor() []byte {
-func (x IterationElement) BlobovniczaID() *blobovnicza.ID {
+	return x.descriptor
-	return x.blzID
 }
 
 // Address returns the object address.
@@ -89,7 +88,7 @@ func (b *BlobStor) Iterate(prm IteratePrm) (IterateRes, error) {
 			}
 
 			elem.addr = addr
-			elem.blzID = blobovnicza.NewIDFromBytes([]byte(p))
+			elem.descriptor = []byte(p)
 
 			return prm.handler(elem)
 		})
@@ -103,7 +102,7 @@ func (b *BlobStor) Iterate(prm IteratePrm) (IterateRes, error) {
 		return IterateRes{}, fmt.Errorf("blobovniczas iterator failure: %w", err)
 	}
 
-	elem.blzID = nil
+	elem.descriptor = []byte{}
 
 	var fsPrm fstree.IterationPrm
 	fsPrm.WithIgnoreErrors(prm.ignoreErrors)
@@ -136,11 +135,11 @@ func (b *BlobStor) Iterate(prm IteratePrm) (IterateRes, error) {
 
 // IterateBinaryObjects is a helper function which iterates over BlobStor and passes binary objects to f.
 // Errors related to object reading and unmarshaling are logged and skipped.
-func IterateBinaryObjects(blz *BlobStor, f func(addr oid.Address, data []byte, blzID *blobovnicza.ID) error) error {
+func IterateBinaryObjects(blz *BlobStor, f func(addr oid.Address, data []byte, descriptor []byte) error) error {
 	var prm IteratePrm
 
 	prm.SetIterationHandler(func(elem IterationElement) error {
-		return f(elem.Address(), elem.ObjectData(), elem.BlobovniczaID())
+		return f(elem.Address(), elem.ObjectData(), elem.Descriptor())
 	})
 	prm.IgnoreErrors()
 	prm.SetErrorHandler(func(addr oid.Address, err error) error {

pkg/local_object_storage/blobstor/iterate_test.go

@@ -5,7 +5,6 @@ import (
 	"os"
 	"testing"
 
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/common"
 	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
 	oidtest "github.com/nspcc-dev/neofs-sdk-go/object/id/test"
@@ -71,16 +70,16 @@ func TestIterateObjects(t *testing.T) {
 		require.NoError(t, err)
 	}
 
-	err := IterateBinaryObjects(blobStor, func(_ oid.Address, data []byte, blzID *blobovnicza.ID) error {
+	err := IterateBinaryObjects(blobStor, func(_ oid.Address, data []byte, descriptor []byte) error {
 		v, ok := mObjs[string(data)]
 		require.True(t, ok)
 
 		require.Equal(t, v.data, data)
 
 		if v.big {
-			require.Nil(t, blzID)
+			require.True(t, descriptor != nil && len(descriptor) == 0)
 		} else {
-			require.NotNil(t, blzID)
+			require.NotEmpty(t, descriptor)
 		}
 
 		delete(mObjs, string(data))

pkg/local_object_storage/metabase/VERSION.md

@@ -2,11 +2,7 @@
 
 This file describes changes between the metabase versions.
 
-## Version 0
+## Current
-
-- Container ID is encoded as base58 string
-- Object ID is encoded as base58 string
-- Address is encoded as container ID + "/" + object ID
 
 ### Primary buckets
 - Graveyard bucket
@@ -53,10 +49,10 @@ This file describes changes between the metabase versions.
   - Name: container ID + `_TS`
   - Key: object ID
   - Value: marshaled object
-- Buckets mapping objects to the blobovniczas they are stored in
+- Buckets mapping objects to the storage ID they are stored in
   - Name: container ID + `_small`
   - Key: object ID
-  - Value: blobovnicza ID
+  - Value: storage ID
 - Buckets for mapping parent object to the split info
   - Name: container ID + `_root`
   - Key: object ID
@@ -85,3 +81,16 @@ This file describes changes between the metabase versions.
   - Name: container ID + `_splitid`
   - Key: split ID
   - Value: list of object IDs
+
+
+# History
+
+## Version 1
+
+- Metabase now stores generic storage id instead of blobovnicza ID.
+
+## Version 0
+
+- Container ID is encoded as base58 string
+- Object ID is encoded as base58 string
+- Address is encoded as container ID + "/" + object ID

pkg/local_object_storage/metabase/delete.go

@@ -254,7 +254,7 @@ func delUniqueIndexes(tx *bbolt.Tx, obj *objectSDK.Object, isParent bool) error
 		})
 	}
 
-	delUniqueIndexItem(tx, namedBucketItem{ // remove from small blobovnicza id index
+	delUniqueIndexItem(tx, namedBucketItem{ // remove from storage id index
 		name: smallBucketName(cnr),
 		key:  objKey,
 	})

pkg/local_object_storage/metabase/put.go

@@ -9,7 +9,6 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/io"
 	"github.com/nspcc-dev/neofs-node/pkg/core/object"
 	objectCore "github.com/nspcc-dev/neofs-node/pkg/core/object"
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
 	storagelog "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/internal/log"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/util"
 	objectSDK "github.com/nspcc-dev/neofs-sdk-go/object"
@@ -27,7 +26,7 @@ type (
 type PutPrm struct {
 	obj *objectSDK.Object
 
-	id *blobovnicza.ID
+	id []byte
 }
 
 // PutRes groups the resulting values of Put operation.
@@ -38,8 +37,8 @@ func (p *PutPrm) SetObject(obj *objectSDK.Object) {
 	p.obj = obj
 }
 
-// SetBlobovniczaID is a Put option to set blobovnicza ID to save.
+// SetStorageID is a Put option to set storage ID to save.
-func (p *PutPrm) SetBlobovniczaID(id *blobovnicza.ID) {
+func (p *PutPrm) SetStorageID(id []byte) {
 	p.id = id
 }
 
@@ -50,7 +49,6 @@ var (
 )
 
 // Put saves object header in metabase. Object payload expected to be cut.
-// Big objects have nil blobovniczaID.
 //
 // Returns an error of type apistatus.ObjectAlreadyRemoved if object has been placed in graveyard.
 // Returns the object.ErrObjectIsExpired if the object is presented but already expired.
@@ -73,7 +71,7 @@ func (db *DB) Put(prm PutPrm) (res PutRes, err error) {
 }
 
 func (db *DB) put(
-	tx *bbolt.Tx, obj *objectSDK.Object, id *blobovnicza.ID,
+	tx *bbolt.Tx, obj *objectSDK.Object, id []byte,
 	si *objectSDK.SplitInfo, currEpoch uint64) error {
 	cnr, ok := obj.ContainerID()
 	if !ok {
@@ -93,11 +91,10 @@ func (db *DB) put(
 	// most right child and split header overlap parent so we have to
 	// check if object exists to not overwrite it twice
 	if exists {
-		// when storage engine moves small objects from one blobovniczaID
+		// When storage engine moves objects between different sub-storages,
-		// to another, then it calls metabase.Put method with new blobovniczaID
+		// it calls metabase.Put method with new storage ID, thus triggering this code.
-		// and this code should be triggered
 		if !isParent && id != nil {
-			return updateBlobovniczaID(tx, object.AddressOf(obj), id)
+			return updateStorageID(tx, object.AddressOf(obj), id)
 		}
 
 		// when storage already has last object in split hierarchy and there is
@@ -152,7 +149,7 @@ func putUniqueIndexes(
 	tx *bbolt.Tx,
 	obj *objectSDK.Object,
 	si *objectSDK.SplitInfo,
-	id *blobovnicza.ID,
+	id []byte,
 ) error {
 	isParent := si != nil
 	addr := object.AddressOf(obj)
@@ -190,12 +187,12 @@ func putUniqueIndexes(
 			return err
 		}
 
-		// index blobovniczaID if it is present
+		// index storageID if it is present
 		if id != nil {
 			err = putUniqueIndexItem(tx, namedBucketItem{
 				name: smallBucketName(cnr),
 				key:  objKey,
-				val:  *id,
+				val:  id,
 			})
 			if err != nil {
 				return err
@@ -423,15 +420,15 @@ func getVarUint(data []byte) (uint64, int, error) {
 	}
 }
 
-// updateBlobovniczaID for existing objects if they were moved from from
+// updateStorageID for existing objects if they were moved from one
-// one blobovnicza to another.
+// storage location to another.
-func updateBlobovniczaID(tx *bbolt.Tx, addr oid.Address, id *blobovnicza.ID) error {
+func updateStorageID(tx *bbolt.Tx, addr oid.Address, id []byte) error {
 	bkt, err := tx.CreateBucketIfNotExists(smallBucketName(addr.Container()))
 	if err != nil {
 		return err
 	}
 
-	return bkt.Put(objectKey(addr.Object()), *id)
+	return bkt.Put(objectKey(addr.Object()), id)
 }
 
 // updateSpliInfo for existing objects if storage filled with extra information

pkg/local_object_storage/metabase/put_test.go

@@ -7,7 +7,6 @@ import (
 	"time"
 
 	"github.com/nspcc-dev/neofs-node/pkg/core/object"
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
 	meta "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/metabase"
 	"github.com/nspcc-dev/neofs-node/pkg/util/rand"
 	cidtest "github.com/nspcc-dev/neofs-sdk-go/container/id/test"
@@ -80,42 +79,42 @@ func TestDB_PutBlobovnicaUpdate(t *testing.T) {
 	db := newDB(t)
 
 	raw1 := generateObject(t)
-	blobovniczaID := blobovnicza.ID{1, 2, 3, 4}
+	storageID := []byte{1, 2, 3, 4}
 
-	// put one object with blobovniczaID
+	// put one object with storageID
-	err := metaPut(db, raw1, &blobovniczaID)
+	err := metaPut(db, raw1, storageID)
 	require.NoError(t, err)
 
-	fetchedBlobovniczaID, err := metaIsSmall(db, object.AddressOf(raw1))
+	fetchedStorageID, err := metaStorageID(db, object.AddressOf(raw1))
 	require.NoError(t, err)
-	require.Equal(t, &blobovniczaID, fetchedBlobovniczaID)
+	require.Equal(t, storageID, fetchedStorageID)
 
-	t.Run("update blobovniczaID", func(t *testing.T) {
+	t.Run("update storageID", func(t *testing.T) {
-		newID := blobovnicza.ID{5, 6, 7, 8}
+		newID := []byte{5, 6, 7, 8}
 
-		err := metaPut(db, raw1, &newID)
+		err := metaPut(db, raw1, newID)
 		require.NoError(t, err)
 
-		fetchedBlobovniczaID, err := metaIsSmall(db, object.AddressOf(raw1))
+		fetchedBlobovniczaID, err := metaStorageID(db, object.AddressOf(raw1))
 		require.NoError(t, err)
-		require.Equal(t, &newID, fetchedBlobovniczaID)
+		require.Equal(t, newID, fetchedBlobovniczaID)
 	})
 
-	t.Run("update blobovniczaID on bad object", func(t *testing.T) {
+	t.Run("update storageID on bad object", func(t *testing.T) {
 		raw2 := generateObject(t)
 		err := putBig(db, raw2)
 		require.NoError(t, err)
 
-		fetchedBlobovniczaID, err := metaIsSmall(db, object.AddressOf(raw2))
+		fetchedBlobovniczaID, err := metaStorageID(db, object.AddressOf(raw2))
 		require.NoError(t, err)
 		require.Nil(t, fetchedBlobovniczaID)
 	})
 }
 
-func metaPut(db *meta.DB, obj *objectSDK.Object, id *blobovnicza.ID) error {
+func metaPut(db *meta.DB, obj *objectSDK.Object, id []byte) error {
 	var putPrm meta.PutPrm
 	putPrm.SetObject(obj)
-	putPrm.SetBlobovniczaID(id)
+	putPrm.SetStorageID(id)
 
 	_, err := db.Put(putPrm)
 

pkg/local_object_storage/metabase/small.go

@@ -1,61 +0,0 @@
-package meta
-
-import (
-	"github.com/nspcc-dev/neo-go/pkg/util/slice"
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
-	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
-	"go.etcd.io/bbolt"
-)
-
-// IsSmallPrm groups the parameters of IsSmall operation.
-type IsSmallPrm struct {
-	addr oid.Address
-}
-
-// IsSmallRes groups the resulting values of IsSmall operation.
-type IsSmallRes struct {
-	id *blobovnicza.ID
-}
-
-// WithAddress is a IsSmall option to set the object address to check.
-func (p *IsSmallPrm) WithAddress(addr oid.Address) {
-	if p != nil {
-		p.addr = addr
-	}
-}
-
-// BlobovniczaID returns blobovnicza identifier.
-func (r IsSmallRes) BlobovniczaID() *blobovnicza.ID {
-	return r.id
-}
-
-// IsSmall returns blobovniczaID for small objects and nil for big objects.
-// Small objects stored in blobovnicza instances. Big objects stored in FS by
-// shallow path which is calculated from address and therefore it is not
-// indexed in metabase.
-func (db *DB) IsSmall(prm IsSmallPrm) (res IsSmallRes, err error) {
-	db.modeMtx.RLock()
-	defer db.modeMtx.RUnlock()
-
-	err = db.boltDB.View(func(tx *bbolt.Tx) error {
-		res.id, err = db.isSmall(tx, prm.addr)
-
-		return err
-	})
-
-	return
-}
-
-func (db *DB) isSmall(tx *bbolt.Tx, addr oid.Address) (*blobovnicza.ID, error) {
-	smallBucket := tx.Bucket(smallBucketName(addr.Container()))
-	if smallBucket == nil {
-		return nil, nil
-	}
-
-	blobovniczaID := smallBucket.Get(objectKey(addr.Object()))
-	if len(blobovniczaID) == 0 {
-		return nil, nil
-	}
-
-	return blobovnicza.NewIDFromBytes(slice.Copy(blobovniczaID)), nil
-}

pkg/local_object_storage/metabase/small_test.go

@@ -1,51 +0,0 @@
-package meta_test
-
-import (
-	"testing"
-
-	"github.com/nspcc-dev/neofs-node/pkg/core/object"
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
-	meta "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/metabase"
-	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
-	"github.com/stretchr/testify/require"
-)
-
-func TestDB_IsSmall(t *testing.T) {
-	db := newDB(t)
-
-	raw1 := generateObject(t)
-	raw2 := generateObject(t)
-
-	blobovniczaID := blobovnicza.ID{1, 2, 3, 4}
-
-	// check IsSmall from empty database
-	fetchedBlobovniczaID, err := metaIsSmall(db, object.AddressOf(raw1))
-	require.NoError(t, err)
-	require.Nil(t, fetchedBlobovniczaID)
-
-	// put one object with blobovniczaID
-	err = metaPut(db, raw1, &blobovniczaID)
-	require.NoError(t, err)
-
-	// put one object without blobovniczaID
-	err = putBig(db, raw2)
-	require.NoError(t, err)
-
-	// check IsSmall for object without blobovniczaID
-	fetchedBlobovniczaID, err = metaIsSmall(db, object.AddressOf(raw2))
-	require.NoError(t, err)
-	require.Nil(t, fetchedBlobovniczaID)
-
-	// check IsSmall for object with blobovniczaID
-	fetchedBlobovniczaID, err = metaIsSmall(db, object.AddressOf(raw1))
-	require.NoError(t, err)
-	require.Equal(t, &blobovniczaID, fetchedBlobovniczaID)
-}
-
-func metaIsSmall(db *meta.DB, addr oid.Address) (*blobovnicza.ID, error) {
-	var isSmallPrm meta.IsSmallPrm
-	isSmallPrm.WithAddress(addr)
-
-	r, err := db.IsSmall(isSmallPrm)
-	return r.BlobovniczaID(), err
-}

pkg/local_object_storage/metabase/storage_id.go

@@ -0,0 +1,53 @@
+package meta
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/util/slice"
+	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
+	"go.etcd.io/bbolt"
+)
+
+// StorageIDPrm groups the parameters of StorageID operation.
+type StorageIDPrm struct {
+	addr oid.Address
+}
+
+// StorageIDRes groups the resulting values of StorageID operation.
+type StorageIDRes struct {
+	id []byte
+}
+
+// SetAddress is a StorageID option to set the object address to check.
+func (p *StorageIDPrm) SetAddress(addr oid.Address) {
+	p.addr = addr
+}
+
+// StorageID returns storage ID.
+func (r StorageIDRes) StorageID() []byte {
+	return r.id
+}
+
+// StorageID returns storage descriptor for objects from the blobstor.
+// It is put together with the object can makes get/delete operation faster.
+func (db *DB) StorageID(prm StorageIDPrm) (res StorageIDRes, err error) {
+	err = db.boltDB.View(func(tx *bbolt.Tx) error {
+		res.id, err = db.storageID(tx, prm.addr)
+
+		return err
+	})
+
+	return
+}
+
+func (db *DB) storageID(tx *bbolt.Tx, addr oid.Address) ([]byte, error) {
+	smallBucket := tx.Bucket(smallBucketName(addr.Container()))
+	if smallBucket == nil {
+		return nil, nil
+	}
+
+	storageID := smallBucket.Get(objectKey(addr.Object()))
+	if storageID == nil {
+		return nil, nil
+	}
+
+	return slice.Copy(storageID), nil
+}

pkg/local_object_storage/metabase/storage_id_test.go

@@ -0,0 +1,50 @@
+package meta_test
+
+import (
+	"testing"
+
+	"github.com/nspcc-dev/neofs-node/pkg/core/object"
+	meta "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/metabase"
+	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
+	"github.com/stretchr/testify/require"
+)
+
+func TestDB_IsSmall(t *testing.T) {
+	db := newDB(t)
+
+	raw1 := generateObject(t)
+	raw2 := generateObject(t)
+
+	storageID := []byte{1, 2, 3, 4}
+
+	// check StorageID from empty database
+	fetchedStorageID, err := metaStorageID(db, object.AddressOf(raw1))
+	require.NoError(t, err)
+	require.Nil(t, fetchedStorageID)
+
+	// put one object with storageID
+	err = metaPut(db, raw1, storageID)
+	require.NoError(t, err)
+
+	// put one object without storageID
+	err = putBig(db, raw2)
+	require.NoError(t, err)
+
+	// check StorageID for object without storageID
+	fetchedStorageID, err = metaStorageID(db, object.AddressOf(raw2))
+	require.NoError(t, err)
+	require.Nil(t, fetchedStorageID)
+
+	// check StorageID for object with storageID
+	fetchedStorageID, err = metaStorageID(db, object.AddressOf(raw1))
+	require.NoError(t, err)
+	require.Equal(t, storageID, fetchedStorageID)
+}
+
+func metaStorageID(db *meta.DB, addr oid.Address) ([]byte, error) {
+	var sidPrm meta.StorageIDPrm
+	sidPrm.SetAddress(addr)
+
+	r, err := db.StorageID(sidPrm)
+	return r.StorageID(), err
+}

pkg/local_object_storage/metabase/version.go

@@ -8,7 +8,7 @@ import (
 )
 
 // version contains current metabase version.
-const version = 0
+const version = 1
 
 var versionKey = []byte("version")
 

pkg/local_object_storage/shard/control.go

@@ -5,7 +5,6 @@ import (
 	"fmt"
 
 	"github.com/nspcc-dev/neofs-node/pkg/core/object"
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor"
 	meta "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/metabase"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/shard/mode"
@@ -150,7 +149,7 @@ func (s *Shard) refillMetabase() error {
 
 	obj := objectSDK.New()
 
-	return blobstor.IterateBinaryObjects(s.blobStor, func(addr oid.Address, data []byte, blzID *blobovnicza.ID) error {
+	return blobstor.IterateBinaryObjects(s.blobStor, func(addr oid.Address, data []byte, descriptor []byte) error {
 		if err := obj.Unmarshal(data); err != nil {
 			s.log.Warn("could not unmarshal object",
 				zap.Stringer("address", addr),
@@ -206,7 +205,7 @@ func (s *Shard) refillMetabase() error {
 
 		var mPrm meta.PutPrm
 		mPrm.SetObject(obj)
-		mPrm.SetBlobovniczaID(blzID)
+		mPrm.SetStorageID(descriptor)
 
 		_, err := s.metaBase.Put(mPrm)
 		if err != nil && !meta.IsErrRemoved(err) && !errors.Is(err, object.ErrObjectIsExpired) {

pkg/local_object_storage/shard/delete.go

@@ -1,7 +1,6 @@
 package shard
 
 import (
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/common"
 	meta "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/metabase"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/writecache"
@@ -36,7 +35,7 @@ func (s *Shard) Delete(prm DeletePrm) (DeleteRes, error) {
 
 	ln := len(prm.addr)
 
-	smalls := make(map[oid.Address]*blobovnicza.ID, ln)
+	smalls := make(map[oid.Address][]byte, ln)
 
 	for i := range prm.addr {
 		if s.hasWriteCache() {
@@ -46,10 +45,10 @@ func (s *Shard) Delete(prm DeletePrm) (DeleteRes, error) {
 			}
 		}
 
-		var sPrm meta.IsSmallPrm
+		var sPrm meta.StorageIDPrm
-		sPrm.WithAddress(prm.addr[i])
+		sPrm.SetAddress(prm.addr[i])
 
-		res, err := s.metaBase.IsSmall(sPrm)
+		res, err := s.metaBase.StorageID(sPrm)
 		if err != nil {
 			s.log.Debug("can't get blobovniczaID from metabase",
 				zap.Stringer("object", prm.addr[i]),
@@ -58,8 +57,8 @@ func (s *Shard) Delete(prm DeletePrm) (DeleteRes, error) {
 			continue
 		}
 
-		if res.BlobovniczaID() != nil {
+		if res.StorageID() != nil {
-			smalls[prm.addr[i]] = res.BlobovniczaID()
+			smalls[prm.addr[i]] = res.StorageID()
 		}
 	}
 
@@ -72,31 +71,14 @@ func (s *Shard) Delete(prm DeletePrm) (DeleteRes, error) {
 	}
 
 	for i := range prm.addr { // delete small object
-		if id, ok := smalls[prm.addr[i]]; ok {
+		var delPrm common.DeletePrm
-			var delSmallPrm common.DeletePrm
+		delPrm.Address = prm.addr[i]
-			delSmallPrm.Address = prm.addr[i]
+		id := smalls[prm.addr[i]]
-			delSmallPrm.BlobovniczaID = id
+		delPrm.StorageID = id
 
-			_, err = s.blobStor.Delete(delSmallPrm)
+		_, err = s.blobStor.Delete(delPrm)
-			if err != nil {
-				s.log.Debug("can't remove small object from blobStor",
-					zap.Stringer("object_address", prm.addr[i]),
-					zap.String("error", err.Error()))
-			}
-
-			continue
-		}
-
-		var id blobovnicza.ID
-
-		// delete big object
-		var delBigPrm common.DeletePrm
-		delBigPrm.Address = prm.addr[i]
-		delBigPrm.BlobovniczaID = &id
-
-		_, err = s.blobStor.Delete(delBigPrm)
 		if err != nil {
-			s.log.Debug("can't remove big object from blobStor",
+			s.log.Debug("can't remove small object from blobStor",
 				zap.Stringer("object_address", prm.addr[i]),
 				zap.String("error", err.Error()))
 		}

pkg/local_object_storage/shard/get.go

@@ -3,7 +3,6 @@ package shard
 import (
 	"fmt"
 
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/common"
 	meta "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/metabase"
@@ -16,7 +15,7 @@ import (
 
 // storFetcher is a type to unify object fetching mechanism in `fetchObjectData`
 // method. It represents generalization of `getSmall` and `getBig` methods.
-type storFetcher = func(stor *blobstor.BlobStor, id *blobovnicza.ID) (*objectSDK.Object, error)
+type storFetcher = func(stor *blobstor.BlobStor, id []byte) (*objectSDK.Object, error)
 
 // GetPrm groups the parameters of Get operation.
 type GetPrm struct {
@@ -62,10 +61,10 @@ func (r GetRes) HasMeta() bool {
 // Returns an error of type apistatus.ObjectAlreadyRemoved if the requested object has been marked as removed in shard.
 // Returns the object.ErrObjectIsExpired if the object is presented but already expired.
 func (s *Shard) Get(prm GetPrm) (GetRes, error) {
-	cb := func(stor *blobstor.BlobStor, id *blobovnicza.ID) (*objectSDK.Object, error) {
+	cb := func(stor *blobstor.BlobStor, id []byte) (*objectSDK.Object, error) {
 		var getPrm common.GetPrm
 		getPrm.Address = prm.addr
-		getPrm.BlobovniczaID = id
+		getPrm.StorageID = id
 
 		res, err := stor.Get(getPrm)
 		if err != nil {
@@ -131,21 +130,15 @@ func (s *Shard) fetchObjectData(addr oid.Address, skipMeta bool, cb storFetcher,
 		return nil, false, errNotFound
 	}
 
-	var mPrm meta.IsSmallPrm
+	var mPrm meta.StorageIDPrm
-	mPrm.WithAddress(addr)
+	mPrm.SetAddress(addr)
 
-	mRes, err := s.metaBase.IsSmall(mPrm)
+	mRes, err := s.metaBase.StorageID(mPrm)
 	if err != nil {
 		return nil, true, fmt.Errorf("can't fetch blobovnicza id from metabase: %w", err)
 	}
 
-	blobovniczaID := mRes.BlobovniczaID()
+	res, err = cb(s.blobStor, mRes.StorageID())
-	if blobovniczaID == nil {
-		var id blobovnicza.ID
-		blobovniczaID = &id
-	}
-
-	res, err = cb(s.blobStor, blobovniczaID)
 
 	return res, true, err
 }

pkg/local_object_storage/shard/put.go

@@ -61,7 +61,7 @@ func (s *Shard) Put(prm PutPrm) (PutRes, error) {
 	if !m.NoMetabase() {
 		var pPrm meta.PutPrm
 		pPrm.SetObject(prm.obj)
-		pPrm.SetBlobovniczaID(res.BlobovniczaID)
+		pPrm.SetStorageID(res.StorageID)
 		if _, err := s.metaBase.Put(pPrm); err != nil {
 			// may we need to handle this case in a special way
 			// since the object has been successfully written to BlobStor

pkg/local_object_storage/shard/range.go

@@ -1,7 +1,6 @@
 package shard
 
 import (
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/common"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/writecache"
@@ -67,12 +66,12 @@ func (r RngRes) HasMeta() bool {
 // Returns an error of type apistatus.ObjectAlreadyRemoved if the requested object has been marked as removed in shard.
 // Returns the object.ErrObjectIsExpired if the object is presented but already expired.
 func (s *Shard) GetRange(prm RngPrm) (RngRes, error) {
-	cb := func(stor *blobstor.BlobStor, id *blobovnicza.ID) (*object.Object, error) {
+	cb := func(stor *blobstor.BlobStor, id []byte) (*object.Object, error) {
 		var getRngPrm common.GetRangePrm
 		getRngPrm.Address = prm.addr
 		getRngPrm.Range.SetOffset(prm.off)
 		getRngPrm.Range.SetLength(prm.ln)
-		getRngPrm.BlobovniczaID = id
+		getRngPrm.StorageID = id
 
 		res, err := stor.GetRange(getRngPrm)
 		if err != nil {

pkg/local_object_storage/writecache/flush.go

@@ -5,7 +5,6 @@ import (
 	"time"
 
 	"github.com/mr-tron/base58"
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/common"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/fstree"
 	meta "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/metabase"
@@ -228,7 +227,7 @@ func (c *cache) flushWorker(num int) {
 
 // writeObject is used to write object directly to the main storage.
 func (c *cache) writeObject(obj *object.Object, metaOnly bool) error {
-	var id *blobovnicza.ID
+	var descriptor []byte
 
 	if !metaOnly {
 		var prm common.PutPrm
@@ -239,12 +238,12 @@ func (c *cache) writeObject(obj *object.Object, metaOnly bool) error {
 			return err
 		}
 
-		id = res.BlobovniczaID
+		descriptor = res.StorageID
 	}
 
 	var pPrm meta.PutPrm
 	pPrm.SetObject(obj)
-	pPrm.SetBlobovniczaID(id)
+	pPrm.SetStorageID(descriptor)
 
 	_, err := c.metabase.Put(pPrm)
 	return err